-4z+18+7=-20-9z

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Solution for -4z+18+7=-20-9z equation: 



-4z+18+7=-20-9z

We move all terms to the left:

-4z+18+7-(-20-9z)=0

We add all the numbers together, and all the variables

-4z-(-9z-20)+18+7=0

We add all the numbers together, and all the variables

-4z-(-9z-20)+25=0

We get rid of parentheses

-4z+9z+20+25=0

We add all the numbers together, and all the variables

5z+45=0

We move all terms containing z to the left, all other terms to the right

5z=-45

z=-45/5

z=-9

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